Question: -1 3 -2 Let A = -1 2 x - 6 . For what values of x is A invertible? 1 X -2 Compute the

-1 3 -2 Let A = -1 2 x - 6 . For what values of x is A invertible? 1 X -2 Compute the determinant of A (it will be a polynomial in x) and use it to answer this question. The matrix A is invertible for all x # Check

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